Piston-ring remover



w. B. HUNTER.

- PISTON RING REMOVER.

APPLICATION FILED MAR. 13. 1919.

Patented Oct. 14, 1919.

5 fag [721/6 702502 fin; W a :57

WILLIAM B. HUNTER, OFFITGHBURG, MASSACHUSETTS.

PISTON -RI1\T G REMOVER.

Specificationof Letters Patent.

Patented a. 14, 1919.

Application filed March 13, 1919, Serial a... 282,448.

To all whom it may concern: 7

Be it known that I, lVrLLiAM 'B. HUNTER,

.a citizen of the United States, residing at Fitchburg, in the county ofMiddleser and State of Massachusetts, have Invented new and usefulImprovements in Prston-Rmg Removers, of which the following is a specivof vsald piston, and 111 removing the piston fication.

This invention relates to a device for removing packing rings from apiston.

It is well known to those skilled in the art that it is a difficult andtedious job to take the packing rings out of their grooves and removethem from a piston, and it is the object of this inventionto provide adevice for easily accomplishing this result.

The invention consists in a split sleeve of spring metal having one endthereof so formed as to provide a point which can be inserted in thepacking ring and used to spread the ring and simultaneously to transferthe ring from its groove in the piston to the outside of said sleeve.

The invention further consists in a sleeve adapted to remove packingrings from pistons such as hereinafter described and particularly of theconstruction set forth in the claims.

Referring to the drawings:

Figure 1 is a front elevation of my improved piston ring remover.

Fig. 2 is a sectional elevation taken on line 2-2 of Fig. 1, but showingthe remover in position relatively to a piston and piston ring when thesame is first inserted between the ring and the piston, the piston ringbeing shown in section.

Fig. 3 is a plan. view of the remover.

Fig. 4 is a plan view of the remover showing the same compressed withits adjacent edges overlapping.

Fig. 5 is a front elevation of the remover with its adjacent edgesoverlapping and a piston ring shown in section relatively thereto.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 6 is the remover which consists of a cylindrical sleeveportion 7 of thin spring metal, split longitudinally thereof at 8 andprovided with a pair of oppositely disposed segmental flanges 9. One endof the sleeve 7 is extended longitudinally of the sleeve forming acurved edge 10 which terminates in a divided point 11.

12 is a piston cylinder. provided with a groove 13 to rece ve a pistonpacking ring lei. 'lVhen the piston packing ring 14 is.

pushed to one side in its groove, as, illustrated in Fig. 2,.there is aslight space between the inner 'bore of the packing ring and theperiphery; ofthe piston atone side rin from its groove said piston ring14 is pus led into the position illustrated in Fig. 2 and the doublepointed end 11 of the remover sleeve is inserted in said space, with theinner surface of the sleeve resting against the periphery of thecylinder. Said remover is then pushed downwardly, the operator takinghold of the segmental flanges 9 in order to conveniently force thesleeve downwardly along the periphery of the piston 12 and the inclinedcurved edges 10 of said remover will thus be gradually forced in betweenthe inner bore of the piston ring and the periphery of the piston 12until said ring is spread apart and is forced up onto the periphery ofthe sleeve.

It will be noted that in order to aid in this operation the lower end ofthe sleeve 7 is beveled on its outer surface at 15. When the piston ringhas been thus forced up onto the periphery of the remover 7, the removeris slid off of the piston and thus the ring is also removed from thepiston. To remove the piston ring from the remover, said remover iscompressed so that the opposite edges 16 overlap, as illustrated inFigs. A and 5, and the piston ring 14 will then drop off of the remover.

Having thus specifically described my invention, what I claim and desireby Letters Patent to secure is:

1. A piston ring remover consisting of a metal sleeve having one endextended longitudinally thereof at one side of said remover.

2. A piston ring remover consisting of a metal sleeve having one endextended longitudinally thereof at one side of said remover to form awedge.

3. A piston ring remover consisting of a metal sleeve having one endextended longitudinally thereof at one side of said remover to form apointed end and being split longitudinally thereof.

4. A piston ring remover consisting of a metal sleeve having one endextended longitudinally thereof at one side of said remover to form apointed end, said sleeve being metalsleeve having one end extendedlongitudinally thereof at one sideof said remover en ia flengeqni heperiphery of Said Sleeve- 8. A piston ring remover consisting of ametal'isleeiieihaving one end extended longitudinally thereof at oneside of said remover and a pai g of oppositely disposed segmentalflanges on said sleeve.

Iiftest-iinony whereof I have hereunto set my hand in presence of asubscribing Witness.

VVILLLAM' B, HUNTER.

Witness:

FRANnLIN, E. Low.

Gopiesoflthis patent may be obtained for. fivecents each, by addressingthe Commissioner of Patents,

' Washington, I). 0.

